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Proceedings Paper

A prototype for the real-time analysis of the Cherenkov Telescope Array
Author(s): Andrea Bulgarelli; Valentina Fioretti; Andrea Zoli; Alessio Aboudan; Juan José Rodríguez-Vázquez; Gernot Maier; Etienne Lyard; Denis Bastieri; Saverio Lombardi; Gino Tosti; Adriano De Rosa; Sonia Bergamaschi; Matteo Interlandi; Domenico Beneventano; Giovanni Lamanna; Jean Jacquemier; Karl Kosack; Lucio Angelo Antonelli; Catherine Boisson; Jerzy Burkowski; Sara Buson; Alessandro Carosi; Vito Conforti; Jose Luis Contreras; Giovanni De Cesare; Raquel de los Reyes; Jon Dumm; Phil Evans; Lucy Fortson; Matthias Fuessling; Ricardo Graciani; Fulvio Gianotti; Paola Grandi; Jim Hinton; Brian Humensky; Jürgen Knödlseder; Giuseppe Malaguti; Martino Marisaldi; Nadine Neyroud; Luciano Nicastro; Stefan Ohm; Julian Osborne; Simon Rosen; Alessandro Tacchini; Eleonora Torresi; Vincenzo Testa; Massimo Trifoglio; Amanda Weinstein
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Paper Abstract

The Cherenkov Telescope Array (CTA) observatory will be one of the biggest ground-based very-high-energy (VHE) γ- ray observatory. CTA will achieve a factor of 10 improvement in sensitivity from some tens of GeV to beyond 100 TeV with respect to existing telescopes. The CTA observatory will be capable of issuing alerts on variable and transient sources to maximize the scientific return. To capture these phenomena during their evolution and for effective communication to the astrophysical community, speed is crucial. This requires a system with a reliable automated trigger that can issue alerts immediately upon detection of γ-ray flares. This will be accomplished by means of a Real-Time Analysis (RTA) pipeline, a key system of the CTA observatory. The latency and sensitivity requirements of the alarm system impose a challenge because of the anticipated large data rate, between 0.5 and 8 GB/s. As a consequence, substantial efforts toward the optimization of highthroughput computing service are envisioned. For these reasons our working group has started the development of a prototype of the Real-Time Analysis pipeline. The main goals of this prototype are to test: (i) a set of frameworks and design patterns useful for the inter-process communication between software processes running on memory; (ii) the sustainability of the foreseen CTA data rate in terms of data throughput with different hardware (e.g. accelerators) and software configurations, (iii) the reuse of nonreal- time algorithms or how much we need to simplify algorithms to be compliant with CTA requirements, (iv) interface issues between the different CTA systems. In this work we focus on goals (i) and (ii).

Paper Details

Date Published: 22 July 2014
PDF: 9 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91452X (22 July 2014); doi: 10.1117/12.2054744
Show Author Affiliations
Andrea Bulgarelli, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna (Italy)
Valentina Fioretti, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna (Italy)
Andrea Zoli, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna (Italy)
Alessio Aboudan, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna (Italy)
CISAS, Univ. degli Studi di Padova (Italy)
Juan José Rodríguez-Vázquez, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
Gernot Maier, Deutsched Elektronen-Synchrotron (Germany)
Etienne Lyard, Univ. de Genève (Switzerland)
Denis Bastieri, Univ. degli Studi di Padova (Italy)
INAF - Osservatorio Astronomico di Roma (Italy)
Saverio Lombardi, INAF - Osservatorio Astronomico di Roma (Italy)
Gino Tosti, Univ. degli Studi di Perugia (Italy)
Adriano De Rosa, INAF - IASF Bologna (Italy)
Sonia Bergamaschi, INAF - IASF Bologna (Italy)
Univ. degli Studi di Modena e Reggio Emilia (Italy)
Matteo Interlandi, INAF - IASF Bologna (Italy)
Univ. degli Studi di Modena e Reggio Emilia (Italy)
Domenico Beneventano, INAF - IASF Bologna (Italy)
Univ. degli Studi di Modena e Reggio Emilia (Italy)
Giovanni Lamanna, Lab. d’Annecy-le-Vieux de Physique des Particules, CNRS, Univ. de Savoie (France)
Jean Jacquemier, Lab. d’Annecy-le-Vieux de Physique des Particules, CNRS, Univ. de Savoie (France)
Karl Kosack, IRFU-CEA (France)
Lucio Angelo Antonelli, INAF - Osservatorio Astronomico di Roma (Italy)
Catherine Boisson, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Jerzy Burkowski, Copernicus Astronomical Ctr. (Poland)
Sara Buson, Univ. degli studi di Padua (Italy)
Alessandro Carosi, INAF - Osservatorio Astronomico di Roma (Italy)
Vito Conforti, INAF - IASF Bologna (Italy)
Jose Luis Contreras, Univ. Complutense de Madrid (Spain)
Giovanni De Cesare, INAF - IASF Bologna (Italy)
Raquel de los Reyes, Max-Planck-Institut für Kernphysik (Germany)
Jon Dumm, Univ. of Iowa (United States)
Phil Evans, Univ. of Leicester (United Kingdom)
Lucy Fortson, Iowa State Univ. (United States)
Matthias Fuessling, Univ. Potsdam (Germany)
Ricardo Graciani, Univ. de Barcelona (Italy)
Fulvio Gianotti, INAF - IASF Bologna (Italy)
Paola Grandi, INAF - IASF Bologna (Italy)
Jim Hinton, Univ. of Leicester (United Kingdom)
Brian Humensky, Columbia Univ. (United States)
Jürgen Knödlseder, Institut de Recherche en Astrophysique et Planétologie, CNRS (France)
Giuseppe Malaguti, INAF - IASF Bologna (Italy)
Martino Marisaldi, INAF - IASF Bologna (Italy)
Nadine Neyroud, Lab. d’Annecy-le-Vieux de Physique des Particules, CNRS, Univ. de Savoie (France)
Luciano Nicastro, INAF - IASF Bologna (Italy)
Stefan Ohm, Univ. of Leicester (United Kingdom)
Julian Osborne, Univ. of Leicester (United Kingdom)
Simon Rosen, Univ. of Leicester (United Kingdom)
Alessandro Tacchini, INAF - IASF Bologna (Italy)
Eleonora Torresi, INAF - IASF Bologna (Italy)
Vincenzo Testa, INAF - Osservatorio Astronomico di Roma (Italy)
Massimo Trifoglio, INAF - IASF Bologna (Italy)
Amanda Weinstein, Univ. of Iowa (United States)


Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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